* [Bug 83461] New: hdmi screen flicker/unusable
@ 2014-08-29 18:49 bugzilla-daemon
2014-09-08 4:22 ` [Bug 83461] " bugzilla-daemon
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From: bugzilla-daemon @ 2014-08-29 18:49 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
Bug ID: 83461
Summary: hdmi screen flicker/unusable
Product: Drivers
Version: 2.5
Kernel Version: 3.15, 3.16
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: blocking
Priority: P1
Component: Video(DRI - non Intel)
Assignee: drivers_video-dri@kernel-bugs.osdl.org
Reporter: kb@spatium.org
Regression: No
Since kernel 3.15 I cannot get a stable video output on HDMI. The screen
flickers and blinks, and my dmesg is full of these:
sound hdaudioC1D0: HDMI ATI/AMD: no speaker allocation for ELD
The video card in question is:
Advanced Micro Devices, Inc. [AMD/ATI] RS880 [Radeon HD 4200]
Downgrading to 3.14 seems to remove the issue.
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* [Bug 83461] hdmi screen flicker/unusable
2014-08-29 18:49 [Bug 83461] New: hdmi screen flicker/unusable bugzilla-daemon
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2014-09-15 17:03 ` bugzilla-daemon
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From: bugzilla-daemon @ 2014-09-08 4:22 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
Alex Deucher <alexdeucher@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |alexdeucher@gmail.com
--- Comment #1 from Alex Deucher <alexdeucher@gmail.com> ---
Does booting with radeon.audio=0 on the kernel command line in grub fix the
issue? You can also disable audio on the fly xrandr. E.g.,
xrandr --output HDMI-0 --set audio off
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* [Bug 83461] hdmi screen flicker/unusable
2014-08-29 18:49 [Bug 83461] New: hdmi screen flicker/unusable bugzilla-daemon
2014-09-08 4:22 ` [Bug 83461] " bugzilla-daemon
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From: bugzilla-daemon @ 2014-09-15 17:03 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
kb@spatium.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Regression|No |Yes
--- Comment #2 from kb@spatium.org ---
I haven't tried myself, but according to publicly available forums it would
help. However, I need hdmi audio working, so I can't use this as a workaround.
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* [Bug 83461] hdmi screen flicker/unusable
2014-08-29 18:49 [Bug 83461] New: hdmi screen flicker/unusable bugzilla-daemon
2014-09-08 4:22 ` [Bug 83461] " bugzilla-daemon
2014-09-15 17:03 ` bugzilla-daemon
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2014-09-16 16:00 ` bugzilla-daemon
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From: bugzilla-daemon @ 2014-09-15 18:57 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #3 from Alex Deucher <alexdeucher@gmail.com> ---
Can you try it to be sure to at least narrow down what the problem might be?
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* [Bug 83461] hdmi screen flicker/unusable
2014-08-29 18:49 [Bug 83461] New: hdmi screen flicker/unusable bugzilla-daemon
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From: bugzilla-daemon @ 2014-09-16 16:00 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #4 from kb@spatium.org ---
ok i tried it and surprisingly it does not help. I have flicker, but i don't
get the ELD messages.
Note I also use video=HDMI-A-1:640x480 for the kernel to get a usable
resolution in the text console.
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* [Bug 83461] hdmi screen flicker/unusable
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From: bugzilla-daemon @ 2014-09-17 1:10 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #5 from Alex Deucher <alexdeucher@gmail.com> ---
(In reply to kb from comment #0)
>
> Downgrading to 3.14 seems to remove the issue.
Can you bisect to find out what change caused this regression?
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* [Bug 83461] hdmi screen flicker/unusable
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From: bugzilla-daemon @ 2014-09-17 14:35 UTC (permalink / raw)
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--- Comment #6 from kb@spatium.org ---
I'll have to setup the enviro, it'll take some time. But yeah, I'll do it.
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* [Bug 83461] hdmi screen flicker/unusable
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From: bugzilla-daemon @ 2014-10-19 19:35 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #7 from kb@spatium.org ---
32167016076f714f0e35e287fbead7de0f1fb179 is the first bad commit
commit 32167016076f714f0e35e287fbead7de0f1fb179
Author: Christian König <christian.koenig@amd.com>
Date: Fri Mar 28 18:55:10 2014 +0100
drm/radeon: rework finding display PLL numbers v2
This completely reworks how the PLL parameters are generated and
should result in better matching dot clock frequencies.
Probably needs quite a bit of testing.
bugs: https://bugs.freedesktop.org/show_bug.cgi?id=76564
v2: more cleanup and comments.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
:040000 040000 1a91914271fc3761ec6961fa0cc4bded879bd05c
c0ab21500dcb8d2876f4744e4465c9aa7203a113 M drivers
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* [Bug 83461] hdmi screen flicker/unusable
2014-08-29 18:49 [Bug 83461] New: hdmi screen flicker/unusable bugzilla-daemon
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From: bugzilla-daemon @ 2014-10-19 19:37 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #8 from kb@spatium.org ---
Also, I've noticed that when X boots, the "good" kernels give this sequence:
1) TV blanks with "No signal" message briefly
2) Desktop shows normally
And the "bad" kernels give:
1) TV blanks with "Mode not supported" message for a longer time
2) Desktop shows, blinking and/or flickering
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From: bugzilla-daemon @ 2014-10-20 16:20 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #9 from Christian König <deathsimple@vodafone.de> ---
Please provide the output of "xrandr --verbose" and of dmesg when booted with
"drm.debug=0xe" on the kernel command line.
Thanks,
Christian.
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To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #10 from kb@spatium.org ---
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
VGA-0 disconnected (normal left inverted right x axis y axis)
Identifier: 0x51
Timestamp: 20519
Subpixel: no subpixels
Clones:
CRTCs: 0 1
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
load detection: 1
range: (0, 1)
HDMI-0 connected 1920x1080+0+0 (0x54) normal (normal left inverted right x axis
y axis) 160mm x 90mm
Identifier: 0x52
Timestamp: 20519
Subpixel: horizontal rgb
Gamma: 1.0:1.0:1.0
Brightness: 1.0
Clones:
CRTC: 0
CRTCs: 0 1
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
EDID:
00ffffffffffff004c2d090501000000
30120103801009780aee91a3544c9926
0f5054bdef80714f8100814081809500
950fb3000101023a801871382d40582c
4500a05a0000001e662150b051001b30
40703600a05a0000001e000000fd0018
4b1a5117000a202020202020000000fc
0053414d53554e470a2020202020016f
020327f14b901f041305140312202122
2309070783010000e2000fe305030167
030c003000b82d011d007251d01e206e
285500a05a0000001e011d00bc52d01e
20b8285540a05a0000001e011d801871
1c1620582c2500a05a0000009e011d80
d0721c1620102c2580a05a0000009e00
000000000000000000000000000000fd
dither: off
supported: off, on
audio: auto
supported: off, on, auto
underscan vborder: 0
range: (0, 128)
underscan hborder: 0
range: (0, 128)
underscan: off
supported: off, on, auto
coherent: 1
range: (0, 1)
1920x1080 (0x54) 148.500MHz +HSync +VSync *current +preferred
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.50KHz
v: height 1080 start 1084 end 1089 total 1125 clock 60.00Hz
1920x1080 (0x55) 148.500MHz +HSync +VSync
h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 56.25KHz
v: height 1080 start 1084 end 1089 total 1125 clock 50.00Hz
1920x1080 (0x56) 148.352MHz +HSync +VSync
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.43KHz
v: height 1080 start 1084 end 1089 total 1125 clock 59.94Hz
1920x1080i (0x57) 74.250MHz +HSync +VSync Interlace
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.75KHz
v: height 1080 start 1084 end 1094 total 1125 clock 60.00Hz
1920x1080i (0x58) 74.250MHz +HSync +VSync Interlace
h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 28.12KHz
v: height 1080 start 1084 end 1094 total 1125 clock 50.00Hz
1920x1080 (0x59) 74.250MHz +HSync +VSync
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.75KHz
v: height 1080 start 1084 end 1089 total 1125 clock 30.00Hz
1920x1080 (0x5a) 74.250MHz +HSync +VSync
h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 28.12KHz
v: height 1080 start 1084 end 1089 total 1125 clock 25.00Hz
1920x1080 (0x5b) 74.250MHz +HSync +VSync
h: width 1920 start 2558 end 2602 total 2750 skew 0 clock 27.00KHz
v: height 1080 start 1084 end 1089 total 1125 clock 24.00Hz
1920x1080i (0x5c) 74.176MHz +HSync +VSync Interlace
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.72KHz
v: height 1080 start 1084 end 1094 total 1125 clock 59.94Hz
1920x1080 (0x5d) 74.176MHz +HSync +VSync
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.72KHz
v: height 1080 start 1084 end 1089 total 1125 clock 29.97Hz
1920x1080 (0x5e) 74.176MHz +HSync +VSync
h: width 1920 start 2558 end 2602 total 2750 skew 0 clock 26.97KHz
v: height 1080 start 1084 end 1089 total 1125 clock 23.98Hz
1680x1050 (0x5f) 119.000MHz +HSync -VSync
h: width 1680 start 1728 end 1760 total 1840 skew 0 clock 64.67KHz
v: height 1050 start 1053 end 1059 total 1080 clock 59.88Hz
1280x1024 (0x60) 135.000MHz +HSync +VSync
h: width 1280 start 1296 end 1440 total 1688 skew 0 clock 79.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 75.02Hz
1280x1024 (0x61) 108.000MHz +HSync +VSync
h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 63.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 60.02Hz
1440x900 (0x62) 136.750MHz -HSync +VSync
h: width 1440 start 1536 end 1688 total 1936 skew 0 clock 70.64KHz
v: height 900 start 903 end 909 total 942 clock 74.98Hz
1440x900 (0x63) 88.750MHz +HSync -VSync
h: width 1440 start 1488 end 1520 total 1600 skew 0 clock 55.47KHz
v: height 900 start 903 end 909 total 926 clock 59.90Hz
1280x960 (0x64) 108.000MHz +HSync +VSync
h: width 1280 start 1376 end 1488 total 1800 skew 0 clock 60.00KHz
v: height 960 start 961 end 964 total 1000 clock 60.00Hz
1360x768 (0x65) 85.500MHz +HSync +VSync
h: width 1360 start 1424 end 1536 total 1792 skew 0 clock 47.71KHz
v: height 768 start 771 end 777 total 795 clock 60.02Hz
1280x800 (0x66) 71.000MHz +HSync -VSync
h: width 1280 start 1328 end 1360 total 1440 skew 0 clock 49.31KHz
v: height 800 start 803 end 809 total 823 clock 59.91Hz
1152x864 (0x67) 108.000MHz +HSync +VSync
h: width 1152 start 1216 end 1344 total 1600 skew 0 clock 67.50KHz
v: height 864 start 865 end 868 total 900 clock 75.00Hz
1280x720 (0x68) 74.250MHz +HSync +VSync
h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 45.00KHz
v: height 720 start 725 end 730 total 750 clock 60.00Hz
1280x720 (0x69) 74.250MHz +HSync +VSync
h: width 1280 start 1720 end 1760 total 1980 skew 0 clock 37.50KHz
v: height 720 start 725 end 730 total 750 clock 50.00Hz
1280x720 (0x6a) 74.176MHz +HSync +VSync
h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 44.96KHz
v: height 720 start 725 end 730 total 750 clock 59.94Hz
1024x768 (0x6b) 78.800MHz +HSync +VSync
h: width 1024 start 1040 end 1136 total 1312 skew 0 clock 60.06KHz
v: height 768 start 769 end 772 total 800 clock 75.08Hz
1024x768 (0x6c) 75.000MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1328 skew 0 clock 56.48KHz
v: height 768 start 771 end 777 total 806 clock 70.07Hz
1024x768 (0x6d) 65.000MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
v: height 768 start 771 end 777 total 806 clock 60.00Hz
832x624 (0x6e) 57.284MHz -HSync -VSync
h: width 832 start 864 end 928 total 1152 skew 0 clock 49.73KHz
v: height 624 start 625 end 628 total 667 clock 74.55Hz
800x600 (0x6f) 50.000MHz +HSync +VSync
h: width 800 start 856 end 976 total 1040 skew 0 clock 48.08KHz
v: height 600 start 637 end 643 total 666 clock 72.19Hz
800x600 (0x70) 49.500MHz +HSync +VSync
h: width 800 start 816 end 896 total 1056 skew 0 clock 46.88KHz
v: height 600 start 601 end 604 total 625 clock 75.00Hz
800x600 (0x71) 40.000MHz +HSync +VSync
h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
v: height 600 start 601 end 605 total 628 clock 60.32Hz
720x576 (0x72) 27.000MHz -HSync -VSync
h: width 720 start 732 end 796 total 864 skew 0 clock 31.25KHz
v: height 576 start 581 end 586 total 625 clock 50.00Hz
720x480 (0x73) 27.027MHz -HSync -VSync
h: width 720 start 736 end 798 total 858 skew 0 clock 31.50KHz
v: height 480 start 489 end 495 total 525 clock 60.00Hz
720x480 (0x74) 27.000MHz -HSync -VSync
h: width 720 start 736 end 798 total 858 skew 0 clock 31.47KHz
v: height 480 start 489 end 495 total 525 clock 59.94Hz
640x480 (0x75) 31.500MHz -HSync -VSync
h: width 640 start 656 end 720 total 840 skew 0 clock 37.50KHz
v: height 480 start 481 end 484 total 500 clock 75.00Hz
640x480 (0x76) 31.500MHz -HSync -VSync
h: width 640 start 664 end 704 total 832 skew 0 clock 37.86KHz
v: height 480 start 489 end 491 total 520 clock 72.81Hz
640x480 (0x77) 30.240MHz -HSync -VSync
h: width 640 start 704 end 768 total 864 skew 0 clock 35.00KHz
v: height 480 start 483 end 486 total 525 clock 66.67Hz
640x480 (0x78) 25.200MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.50KHz
v: height 480 start 490 end 492 total 525 clock 60.00Hz
640x480 (0x79) 25.175MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
v: height 480 start 490 end 492 total 525 clock 59.94Hz
720x400 (0x7a) 28.320MHz -HSync +VSync
h: width 720 start 738 end 846 total 900 skew 0 clock 31.47KHz
v: height 400 start 412 end 414 total 449 clock 70.08Hz
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* [Bug 83461] hdmi screen flicker/unusable
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From: bugzilla-daemon @ 2014-10-23 18:05 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #11 from kb@spatium.org ---
Created attachment 154681
--> https://bugzilla.kernel.org/attachment.cgi?id=154681&action=edit
dmesg with drm.debug=0xe on BAD kernel
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From: bugzilla-daemon @ 2014-10-23 18:06 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #12 from kb@spatium.org ---
note xrandr is on good kernel, dmesg in on bad
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From: bugzilla-daemon @ 2014-10-24 18:00 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #13 from Christian König <deathsimple@vodafone.de> ---
(In reply to kb from comment #12)
> note xrandr is on good kernel, dmesg in on bad
Those outputs should work fine. Going to make a patch for this, but this might
take a while.
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From: bugzilla-daemon @ 2014-10-28 15:49 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #14 from Christian König <deathsimple@vodafone.de> ---
Created attachment 155721
--> https://bugzilla.kernel.org/attachment.cgi?id=155721&action=edit
Add more debugging output.
Please apply the attached patch and provide new dmesg created with
drm.debug=0xE
It should now show a bit more debugging output about your hardware.
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From: bugzilla-daemon @ 2014-11-01 19:40 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #15 from kb@spatium.org ---
Created attachment 156061
--> https://bugzilla.kernel.org/attachment.cgi?id=156061&action=edit
dmesg 2nd run
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* [Bug 83461] hdmi screen flicker/unusable
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From: bugzilla-daemon @ 2014-11-01 19:45 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #16 from kb@spatium.org ---
I applied the patch but don't see any of the extra msgs in the dmesg. Maybe
it's because i'm running it on the BAD kernel? Can you make a patch against
3.14 (this one doesn't apply cleanly on 3.14)?
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From: bugzilla-daemon @ 2014-11-01 20:01 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #17 from kb@spatium.org ---
Created attachment 156071
--> https://bugzilla.kernel.org/attachment.cgi?id=156071&action=edit
dmesg round 2 with correct kernel
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From: bugzilla-daemon @ 2014-11-01 20:01 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #18 from kb@spatium.org ---
OK, false alarm. I had a wrong kernel. Correct output attached.
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From: bugzilla-daemon @ 2014-11-02 11:58 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
Christian König <deathsimple@vodafone.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #155721|0 |1
is obsolete| |
--- Comment #19 from Christian König <deathsimple@vodafone.de> ---
Created attachment 156211
--> https://bugzilla.kernel.org/attachment.cgi?id=156211&action=edit
Possible fix
Please try the attached patch. It's based on top of Alex drm-fixes-3.18 branch,
but should apply to older ones as well.
The problem seems to be that with a reference frequency of 14.32Mhz and a
reference divider of 14 we get 1.0228Mhz which is very close to the minimum
input frequency of 1Mhz.
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From: bugzilla-daemon @ 2014-11-07 19:19 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #20 from kb@spatium.org ---
Hi, unfortunately supplied patch does not fix the issue. Do you need some more
debug output?
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From: bugzilla-daemon @ 2014-11-17 11:44 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #21 from Christian König <deathsimple@vodafone.de> ---
(In reply to kb from comment #20)
> Hi, unfortunately supplied patch does not fix the issue. Do you need some
> more debug output?
dmesg output generated with drm.debug=0xE on the kernel command line would be
nice. But I'm running out of idea what else this could be.
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From: bugzilla-daemon @ 2014-11-18 15:50 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #22 from kb@spatium.org ---
I've also added this line
DRM_DEBUG_KMS("in patched branch: %u\n", ref_div_max);
add the end of your patch, i.e. after
ref_div_max = min(ref_div_max, pll->reference_freq / in_min);
just to make sure the new code gets hit.
I see this in dmesg
[ 23.002707] [drm:radeon_compute_pll_avivo] in patched branch: 13
and I'm attaching the full output as well. Hope it gives you some more ideas.
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From: bugzilla-daemon @ 2014-11-18 15:50 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #23 from kb@spatium.org ---
Created attachment 158001
--> https://bugzilla.kernel.org/attachment.cgi?id=158001&action=edit
dmesg #3
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From: bugzilla-daemon @ 2014-11-28 21:20 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #24 from kb@spatium.org ---
Any ideas on this? It's really annoying as I need to keep away from upgrading
kernel past 3.14. :(
Do you think change of graphics card would resolve the issue?
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From: bugzilla-daemon @ 2014-11-29 16:30 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #25 from Christian König <deathsimple@vodafone.de> ---
(In reply to kb from comment #24)
> Any ideas on this? It's really annoying as I need to keep away from
> upgrading kernel past 3.14. :(
Unfortunately not, cause I don't have any idea what's causing this.
You could try to artificially limit ref_div_max or fb_div_max until you get a
stable signal once more. Maybe this will yield some more light on the root
cause of the issue.
> Do you think change of graphics card would resolve the issue?
Well, most likely yes.
But the new kernel seems to work better for some people, but has regressed for
you. So I would really like to create a solution that works for everybody.
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From: bugzilla-daemon @ 2014-11-30 20:51 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #26 from kb@spatium.org ---
(In reply to Christian König from comment #25)
> You could try to artificially limit ref_div_max or fb_div_max until you get
> a stable signal once more. Maybe this will yield some more light on the root
> cause of the issue.
Can you give me some details - how to do this?
> > Do you think change of graphics card would resolve the issue?
>
> Well, most likely yes.
>
> But the new kernel seems to work better for some people, but has regressed
> for you. So I would really like to create a solution that works for
> everybody.
Right now I switched to catalyst which seems to work and allows me to use new
kernel. But since apparently my card is "legacy" I had to downgrade to xorg
server 1.12 :-|
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From: bugzilla-daemon @ 2014-12-01 11:47 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #27 from Christian König <deathsimple@vodafone.de> ---
Created attachment 159331
--> https://bugzilla.kernel.org/attachment.cgi?id=159331&action=edit
Testing patch.
(In reply to kb from comment #26)
> (In reply to Christian König from comment #25)
> > You could try to artificially limit ref_div_max or fb_div_max until you get
> > a stable signal once more. Maybe this will yield some more light on the root
> > cause of the issue.
>
> Can you give me some details - how to do this?
Attached is a testing patch which adds an artificially upper limit to 400.0 for
the feedback divider (normal range 17.0-2048.0) and an upper limit of 13 for
the reference divider (normal range 2-15).
I suggest you start playing with the feedback divider values until you can
figure out the limits for your hardware. E.g. try 400 as in my patch first, if
that works raise it to 800 if that doesn't work go down to 600 again etc..
>
> > > Do you think change of graphics card would resolve the issue?
> >
> > Well, most likely yes.
> >
> > But the new kernel seems to work better for some people, but has regressed
> > for you. So I would really like to create a solution that works for
> > everybody.
>
> Right now I switched to catalyst which seems to work and allows me to use
> new kernel. But since apparently my card is "legacy" I had to downgrade to
> xorg server 1.12 :-|
Yeah, that's the problem I've got as well. The hardware isn't supported any
more so the whole documentation is not available.
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From: bugzilla-daemon @ 2014-12-28 8:24 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #28 from kb@spatium.org ---
I think your patch has a typo on line 1002 should be ref_div_max not
fb_div_max.
Anyway I played with the numbers and I found a config that works for me. See
below for all the different combos. Right now I'm running with ref_div_max
capped to 2 and going to test it in prolonged use. Any further ideas about
this?
fb/ref => outcome
4000/13 => mode not supported (message on TV screen)
2000/13 => MNS
1000/13 => MNS
500/13 => MNS
4000/1023 => MNS
2000/1023 => MNS
1000/1023 => MNS
20470/1023 => (nominal value without any capping) flicker
10000/1023 => flicker
8000/1023 => different type of flicker, then blank screen
6000/1023 => MNS
20470/13 => flicker
20470/11 => flicker
20470/10 => flicker
20470/9 => very seldom flicker
20470/7 => stable!
20470/2 => stable!
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From: bugzilla-daemon @ 2014-12-28 22:11 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #29 from Markus Gaugusch <markus@gaugusch.at> ---
Hi,
I've also verified that commit 32167016076f714f0e35e287fbead7de0f1fb179 breaks
my system:
01:05.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RS880
[Radeon HD 4250] (prog-if 00 [VGA controller])
The attached patch works fine for me. Without the patch, I can no longer use
the DVI connector of my (onboard) graphics card, only VGA works.
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From: bugzilla-daemon @ 2014-12-30 16:24 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #30 from Markus Gaugusch <markus@gaugusch.at> ---
Additional info: With the (unmodified) patch applied, I get a message
"Nonpreset Mode" displayed on my monitor when I turn it on. So I think the
patch is not 100% correct ...
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From: bugzilla-daemon @ 2015-01-17 8:54 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #31 from kb@spatium.org ---
Christian, do you have any further ideas? Can perhaps the ref_div_max be
settable via sysfs so that I can cap it on boot?
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From: bugzilla-daemon @ 2015-01-20 11:23 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
Christian König <deathsimple@vodafone.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #156211|0 |1
is obsolete| |
Attachment #159331|0 |1
is obsolete| |
--- Comment #32 from Christian König <deathsimple@vodafone.de> ---
Created attachment 163891
--> https://bugzilla.kernel.org/attachment.cgi?id=163891&action=edit
Possible fix
Unfortunately I don't have any more ideas either. There must be some
undocumented limitation on RS880 and maybe older chips that don't seem to
exists any more on newer ones.
Unfortunately my last RS880 based system blow up about a month ago, so I can't
test this any more.
Please test the attached patch, it just artificial limits the reference divider
to 7 on RS880 and older chips. If that works I'm going to submit the patch
upstream.
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From: bugzilla-daemon @ 2015-02-09 16:09 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
tuxoholic@hotmail.de changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |tuxoholic@hotmail.de
--- Comment #33 from tuxoholic@hotmail.de ---
Hello Christian
It took me a while to regather my bugzilla login info, so I'm not sure whether
you pushed this fix into kernel-git already or still are awaiting feedback,
anyway ... I'm quoting my testing results I wrote in the debian bugtracker
(#770790):
That small patch in attachment #163891 does indeed fix the screen flickering
for me.
I built three versions of radeon.ko against 3.16.7-ckt2 from debian/testing:
1) vanilla version: reproducible flickering, it's even easier to reproduce by
quickly dragging a medium sized window around in circles
2) superseded version: (attachment #159331): no flickering, might contain a
typo on line 1002, but I did not fix that one and it ran flawless for days
3) current version: (#attachment 163891): no flickering
So to sum up: this small fix in #163891 is a blessing, I vote for pushing this
if it hasn't happened already.
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From: bugzilla-daemon @ 2015-02-09 16:29 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #34 from Alex Deucher <alexdeucher@gmail.com> ---
Already upstream:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=72edd83cc9e5819ed1ee771519143d7594e059f0
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^ permalink raw reply [flat|nested] 39+ messages in thread
* [Bug 83461] hdmi screen flicker/unusable
2014-08-29 18:49 [Bug 83461] New: hdmi screen flicker/unusable bugzilla-daemon
` (33 preceding siblings ...)
2015-02-09 16:29 ` bugzilla-daemon
@ 2015-02-19 20:36 ` bugzilla-daemon
2015-02-19 20:39 ` bugzilla-daemon
` (2 subsequent siblings)
37 siblings, 0 replies; 39+ messages in thread
From: bugzilla-daemon @ 2015-02-19 20:36 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
Joerg Esser <jackfritt@boh.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jackfritt@boh.de
--- Comment #35 from Joerg Esser <jackfritt@boh.de> ---
I had similar problems until I used 3.18.7.
I couldn´t even boot beyond radeon load. The whole kernel crashed and my
Monitor showed no usable signal. I had to blacklist and load it manually with
option radeon.dpm=0, after turning on my Monitor . With kernel 3.18.6 I could
use the radeon option radeon.aspm=0, but still had to turn on my Monitor before
radeon module load.
Now with this kernel I only need radeon.aspm=0 and no blacklist option, either
the Monitor is turned on before or after radeon module load. Also GPU speedup
with Video output works fine.
Thx alot!!
Here´s my card info
lspci -s 01:00.0 -vv
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Cedar
[Radeon HD 5000/6000/7350/8350 Series] (prog-if 00 [VGA controller])
Subsystem: PC Partner Limited / Sapphire Technology Device e157
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 33
Region 0: Memory at e0000000 (64-bit, prefetchable) [size=256M]
Region 2: Memory at f7cc0000 (64-bit, non-prefetchable) [size=128K]
Region 4: I/O ports at d000 [size=256]
Expansion ROM at f7ca0000 [disabled] [size=128K]
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Express (v2) Legacy Endpoint, MSI 00
DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <4us, L1
unlimited
ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr-
TransPend-
LnkCap: Port #0, Speed 5GT/s, Width x16, ASPM L0s L1, Exit
Latency L0s <64ns, L1 <1us
ClockPM- Surprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 5GT/s, Width x2, TrErr- Train- SlotClk+ DLActive-
BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Range ABCD, TimeoutDis+, LTR-,
OBFF Not Supported
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-,
OBFF Disabled
LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range,
EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -6dB,
EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-,
LinkEqualizationRequest-
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee00000 Data: 40e2
Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1
Len=010 <?>
Capabilities: [150 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt-
RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt-
RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt-
RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
Kernel driver in use: radeon
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^ permalink raw reply [flat|nested] 39+ messages in thread
* [Bug 83461] hdmi screen flicker/unusable
2014-08-29 18:49 [Bug 83461] New: hdmi screen flicker/unusable bugzilla-daemon
` (34 preceding siblings ...)
2015-02-19 20:36 ` bugzilla-daemon
@ 2015-02-19 20:39 ` bugzilla-daemon
2015-02-19 20:49 ` bugzilla-daemon
2016-05-02 22:31 ` bugzilla-daemon
37 siblings, 0 replies; 39+ messages in thread
From: bugzilla-daemon @ 2015-02-19 20:39 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #36 from Joerg Esser <jackfritt@boh.de> ---
Oh I forgot, In the kernel changelog it also hits bug 91861.
And it isn´t in 3.19 because there I still have those problem.
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^ permalink raw reply [flat|nested] 39+ messages in thread
* [Bug 83461] hdmi screen flicker/unusable
2014-08-29 18:49 [Bug 83461] New: hdmi screen flicker/unusable bugzilla-daemon
` (35 preceding siblings ...)
2015-02-19 20:39 ` bugzilla-daemon
@ 2015-02-19 20:49 ` bugzilla-daemon
2016-05-02 22:31 ` bugzilla-daemon
37 siblings, 0 replies; 39+ messages in thread
From: bugzilla-daemon @ 2015-02-19 20:49 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #37 from Alex Deucher <alexdeucher@gmail.com> ---
(In reply to Joerg Esser from comment #35)
> I had similar problems until I used 3.18.7.
> I couldn´t even boot beyond radeon load. The whole kernel crashed and my
> Monitor showed no usable signal. I had to blacklist and load it manually
> with option radeon.dpm=0, after turning on my Monitor . With kernel 3.18.6 I
> could use the radeon option radeon.aspm=0, but still had to turn on my
> Monitor before radeon module load.
>
> Now with this kernel I only need radeon.aspm=0 and no blacklist option,
> either the Monitor is turned on before or after radeon module load. Also GPU
> speedup with Video output works fine.
Please file a different bug. This bug and the patch only affect old asics like
the RS880. Something else must have fixed the issue for you.
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^ permalink raw reply [flat|nested] 39+ messages in thread
* [Bug 83461] hdmi screen flicker/unusable
2014-08-29 18:49 [Bug 83461] New: hdmi screen flicker/unusable bugzilla-daemon
` (36 preceding siblings ...)
2015-02-19 20:49 ` bugzilla-daemon
@ 2016-05-02 22:31 ` bugzilla-daemon
37 siblings, 0 replies; 39+ messages in thread
From: bugzilla-daemon @ 2016-05-02 22:31 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=83461
Thom <madeforspam@telfort.nl> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |madeforspam@telfort.nl
--- Comment #38 from Thom <madeforspam@telfort.nl> ---
I landed here via:
https://bugs.freedesktop.org/show_bug.cgi?id=87682
With the same issue mentioned by user Lockheed and the exact same chip
(RS780M).
Last comment in that post (from Alex Deucher) referred to this bugreport.
On my RS780M I have exactly the same artefacts on my LVDS on any kernel version
higher than 3.13 ( https://www.youtube.com/watch?v=nx2-Fvihzxg )
strangely enough the VGA out is not affected.
Kernels tested up to 4.4.0
Would you like me to add some more info or would you like me to file a separate
bug ?
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